Snow plow



R. NlEwENDoRP March 14, l939.

SNOW PLOW 3 Sheets-Sheet 1 Filed Dec. 21, 1937 Nk, Mk,

INK

" #Mg/32m forneys' March 14, 1939. y R. N'IEWENDORP 2,150,396

sNow PLOW sind Dec. 21, 1957 s sneek-sheet 2 nuenor y/le M/QcZO//J y By Attorneys March 14, 1939. R. NlEwgNpo'g 2,150,396

Inventor jf//Z/e//I/vencZo/y torneys l Patented Mar. 14, 1939 UNITED STATES PATENT OFFICE 2,150,396 'I Y E sNoW PLOW l p Richard Niewendorp, Sanborn, l,Iowa Application December 21, 1937, Serial No. 181,025

2 Claims.

My invention relates to improvements in snow plows of the tractor type. f

The primary object of my invention is to equip a tractor with an eilicient snow plowing and conveying apparatus for removing snow and ice from the streets and which may be readily embodied in tractors such as are used on farms without necessitating extensive alteration of the tractors.

Another object is to provide equipment of the character and for the purpose above set forth adapted to either plow up the snow or to both dig and plow the same as the occasion may require.

Still another object is to provide equipment of the character above indicated including both plowing and cutting elements vertically adjustable according to operating requirements.

Other, and subordinate objects, are also comprehended by my invention all of which together with the exact nature of my improvements, will be readily understood when the succeeding description and claims are read with reference to the drawings accompanying and forming part of this specification.

In said drawings:

VFigure 1 is a fragmentary view in side elevation illustrating a tractor equipped according to my invention, f

Figure 2 is a view in top plan,

Figure 3 is a view in perspective of cutting bars and scoops to be presently` described in detail, and

Figure 4 is a viewpartly in side elevation and partly in longitudinal section of the conveyor and parts associated therewith.

Referring to the drawings by numerals, according to my invention the front part of the tractor I has suitably secured thereto, preferably to the chassis, not shown, a platform 2 extending to the right hand side of said tractor. the platform 2 and adjacent the ground is an endless conveyor 3 extending at its opposite ends on opposite sides of the tractor I and having a horizontal run 4 beneath the tractor I and platform 2 and upwardly inclined discharge end 5 on the platform side of the tractor I extending beyond said platform. The conveyor 3 embodies the usual sprocket side chains 6 running on sprocket wheels, as at 1, suitably mountedat opposite ends of a conveyor framev 8. The frame 8 is pivotally mounted, at one end, to the side of the tractor I, opposite the platform 2, as by hanger brackets, one of which is shown in full lines at 9 inFigures 1, 2 and 4, and upon which brackets said frame 8 and conveyor 3 are vertically swingable. to-adjust the discharge end 5 of the latter to different levels as occasion may require. An upstanding U-shaped bail I0 is fixed, as at I I, to the conveyor frame 8, at the discharge end of the latter, and secured by chains I2 to eye 5 bolts I3 provided on the tractor I. The bail I0 is braced by brace bars I4 extending between the same and the conveyor frame 8. 'I'he chains I2 are detachably secured to the eye bolts I3 so thatV the length attached thereto may be shortened 10 or lengthened Ato vary the level of the discharge end 5 of the conveyor 3 as will be understood. The conveyor 3 is designed to be driven by means of a drive shaft I5 extending from one side of the tractor I and driven in any suitable manner 15 by the driving mechanism of the latter, an extension shaft I6 connected at one end to the extending end of the drive shaft I5 by means of a universal joint I'I, and a beveled gear drive `I8 between the other end of said shaft I6 and the 20 sprocket wheelsl on the discharge end of said conveyor 3.

Extending forwardly from the front edge of the platform 2, adjacent the tractor I, is a vertical plate-like bafe, or deflector, I9 of rectan- 25 gular form having a loweredge suitably spaced above the ground `to clear the same and a somewhat thickened vertical front edge,20 provided in the lower end thereof with a threaded bore 2|. Thebaifle I9 functions asa vertical plow for 30 splitting snow drifts and ice and as a deector for throwing snow to either side thereof. Suitably mounted on the front edge 20 of the baille I 9 is an upstanding cutter bar 22 of suitable hard metal. A pair of horizontally disposed cutter 35 bars 24 extend laterally from the lower end of the cutter bar 22 on AOpposite. sides thereof, respectively, in rearwardly diverging relation to form a V-shaped lower cutting assembly. A pair of scoops 25 are secured at their front edges, as 40 at 26, to the cutter bars 24, respectively, to eX- tend on opposite sides of the baille I9 rearwardly and upwardly over thehorizontal run`4 of the conveyor 3.

The baffle I9, cutter bars' 22'and 24, and the 45 scoops 25 form a unit which is mounted on the conveyor frame 8 for vertically swinging movement to adjust the height of the same from the ground in accordance with the depth of the plowing desired. The mounting for the described '50 unit comprises a pair of pusherbars 21 having front ends connected-by rivets l21 to the cutter bars 24, respectively, and converging rearwardly, their rear ends being pivotally connected, as at 28,to bracket arms 29 bolted, as at 30, to the frame 55 8 and upon which said pusher bars 21 and unit are vertically swingable. Adjustment of the described unit is eiected by means of a worm shaft 3I depending from one end of a bracket arm 32 secured at its other end to the tractor I, as at 33, to extend forwardly thereof, the shaft 3I being mounted in said arm 32 to rotate therein and swing thereon, for a purpose presently apparent. The lower end of the shaft 3| extends through the front edge 2D of the bathe I9 into the bore 2l and has keyed thereon, as at 35, a worm 36 cooperating with the' threads in the beforementioned bore 2 I, the arrangement being such that when the shaft 3| is rotated in opposite directions the worm 36 will elevate and lower theV described unit, respectively, on the pivots 29. A crank 31 is provided on the upper end of the shaft 3l for manual rotation of said shaft. The crank 31 and the shaft 3| may be locked against accidental rotation by means of a link 38 pivoted tothe cutter bar v:212, as at 39, and looping over saidfcrank.

.Extending upwardly'and forwardly from the baffle I9 is a boom lll) suitably secured to said baflle andhaving a sheave 4I suitably mounted onthe front end thereof as by the swivel mounting S42. A cable 43 extending from a hoisting drum 144, on theltractor I, and trained over said sheave V4I suspends a drop bottom scoopf45 in front of the scoops 25 and cutter bars 22 and 24. `The hoisting drum *.44 is rotatably mounted on one side Yof the :tractor I over the platform 2 for operation by the mechanism ofthe latter in any suitable manner under controlof a clutch 44 operativefby a clutch engaging lever 46. A pull cable/41 is connected to a bail 48 pivoted, as at 49, tothe-frontend of the scoop-45 to be reeled up on a drum58 for manipulation of said scoop `45 vas will be understood. The drum 50 is rotatably .mounted on the tractor-I for operation by the latter as in the case of the/drum 44 under control of a clutch 5I and clutch lever 52. The scoop 45 maybe of any suitable type, for instance, with a drop bottom 53 pivoted, as at 54, for swingingmovement under release and a locking bail 155 pivotedon the scoop as at 56 for operation against the tension of a spring .51 by a pull cable 58 extending through guides 59 on the tractor I to within reachwof the operator.

Asbest shown infFigure 4, therear side of the conveyor frame-8 may have attached thereto an upstanding abutment wall member 60 to prevent the snow from the scoops 25 from being thrown over the conveyor 3. Y

Referring .toi the operation, the unit comprising thebaiiie I9, cutter bars `22, -24 and the scoops 25 are set the required height by raising or lowering on the pivots 9 and the apparatus is driven into the snow to plow up the same in the scoops 25 which deposit it on the conveyor 3, the latter being driven by the described drive I5, I5, I1 and I8 and carrying the deposit thereon to the discharge end 5 for discharging to one side of the road. The conveyor 3, as will be understood, may be adjusted by the described chains I2 to the appropriate level for discharging at the side of the road; In the case of hard packed snow, or ice, vthe scoop ,.45 is manipulated to dig up the snow in advance of the scoops 25 and also to I deposit in the right hand scoop 25 all under the control of the clutches 44 and 5I.

`An abutment casting 5I is secured on the front .edge of the 4platform 2 on the right hand side of the deector I9. By pulling the scoop 45 inwardly the locking bail may be engaged with said` abutment and the scoop dumped automatically in the right hand scoop 25.

vflvhefinvention will,.;it,is believed, be understood from the foregoing without furtherexplanation.

Manifestly, modifications both in relation of parts andgstructure described may be resorted to without departing from the inventive concept and rightisfherein reserved to alllsuchfmodifications falli-ng within the scope of the subjoined claims.

What Iclaim is:`

1. In apparatus of the class described, the

combination -with a tractor, ofa conveyor suspended fromtheibody thereof `,to extend to one sideof zthe same, a Yvertically l disposed Vplate-like plow member extending forwardly of said conveyor, :a kpair of upwardly and rearwardly inclinedfscoops mounted on said member on oppo- .g

lsite .sides thereof, respectively, and having vrear ends overlying said conveyor, a boom extending upwardly and forwardly from saidmember and beyond -said scoops, anda diggerscoop suspended from said boom, and operative 4to dump into said rst mentioned scoops.

V2.11m apparatus of the yclass described, the

combinationwitha '.tractor, cfa conveyor sus-` pended from the body thereof-to extend to one side of the same, a vertically 'disposed plate-like g plow member extending forwardly of said conveyor, apair of upwardly .and rearwardly vinclined scoops mounted on said member on opposite sides thereof,respectively, and having rear endsv overlying said conveyor, a boom extending -upwardlyand :forwardly from said member and beyond said scoops, and a digger scoop suspended from said boom, -a-nd operative to Vdump into one of said first mentionedscoops, said first mentioned scoops and the conveyor .being relatively adjustable vertically.

RICHARDNIEWENDORP. 

